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FFmpeg/libswscale/yuv2rgb_vis.c

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  1. /*

  2.  * VIS optimized software YUV to RGB converter

  3.  * Copyright (c) 2007 Denes Balatoni <dbalatoni@programozo.hu>

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

  7.  * FFmpeg is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

  10.  * version 2.1 of the License, or (at your option) any later version.

  11.  *

  12.  * FFmpeg is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with FFmpeg; if not, write to the Free Software

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  20.  */

  21. 

  22. #include <inttypes.h>

  23. #include <stdlib.h>

  24. 

  25. #include "swscale.h"

  26. 

  27. #define YUV2RGB_INIT \

  28.     "wr %%g0, 0x10, %%gsr \n\t" \

  29.     "ldd [%5], %%f32      \n\t" \

  30.     "ldd [%5+8], %%f34    \n\t" \

  31.     "ldd [%5+16], %%f36   \n\t" \

  32.     "ldd [%5+24], %%f38   \n\t" \

  33.     "ldd [%5+32], %%f40   \n\t" \

  34.     "ldd [%5+40], %%f42   \n\t" \

  35.     "ldd [%5+48], %%f44   \n\t" \

  36.     "ldd [%5+56], %%f46   \n\t" \

  37.     "ldd [%5+64], %%f48   \n\t" \

  38.     "ldd [%5+72], %%f50   \n\t"

  39. 

  40. #define YUV2RGB_KERNEL \

  41.     /* ^^^^ f0=Y f3=u f5=v */ \

  42.     "fmul8x16 %%f3, %%f48, %%f6   \n\t" \

  43.     "fmul8x16 %%f19, %%f48, %%f22 \n\t" \

  44.     "fmul8x16 %%f5, %%f44, %%f8   \n\t" \

  45.     "fmul8x16 %%f21, %%f44, %%f24 \n\t" \

  46.     "fmul8x16 %%f0, %%f42, %%f0   \n\t" \

  47.     "fmul8x16 %%f16, %%f42, %%f16 \n\t" \

  48.     "fmul8x16 %%f3, %%f50, %%f2   \n\t" \

  49.     "fmul8x16 %%f19, %%f50, %%f18 \n\t" \

  50.     "fmul8x16 %%f5, %%f46, %%f4   \n\t" \

  51.     "fmul8x16 %%f21, %%f46, %%f20 \n\t" \

  52.     \

  53.     "fpsub16 %%f6, %%f34, %%f6   \n\t" /* 1 */ \

  54.     "fpsub16 %%f22, %%f34, %%f22 \n\t" /* 1 */ \

  55.     "fpsub16 %%f8, %%f38, %%f8   \n\t" /* 3 */ \

  56.     "fpsub16 %%f24, %%f38, %%f24 \n\t" /* 3 */ \

  57.     "fpsub16 %%f0, %%f32, %%f0   \n\t" /* 0 */ \

  58.     "fpsub16 %%f16, %%f32, %%f16 \n\t" /* 0 */ \

  59.     "fpsub16 %%f2, %%f36, %%f2   \n\t" /* 2 */ \

  60.     "fpsub16 %%f18, %%f36, %%f18 \n\t" /* 2 */ \

  61.     "fpsub16 %%f4, %%f40, %%f4   \n\t" /* 4 */ \

  62.     "fpsub16 %%f20, %%f40, %%f20 \n\t" /* 4 */ \

  63.     \

  64.     "fpadd16 %%f0, %%f8, %%f8    \n\t" /* Gt */ \

  65.     "fpadd16 %%f16, %%f24, %%f24 \n\t" /* Gt */ \

  66.     "fpadd16 %%f0, %%f4, %%f4    \n\t" /* R */ \

  67.     "fpadd16 %%f16, %%f20, %%f20 \n\t" /* R */ \

  68.     "fpadd16 %%f0, %%f6, %%f6    \n\t" /* B */ \

  69.     "fpadd16 %%f16, %%f22, %%f22 \n\t" /* B */ \

  70.     "fpadd16 %%f8, %%f2, %%f2    \n\t" /* G */ \

  71.     "fpadd16 %%f24, %%f18, %%f18 \n\t" /* G */ \

  72.     \

  73.     "fpack16 %%f4, %%f4    \n\t" \

  74.     "fpack16 %%f20, %%f20  \n\t" \

  75.     "fpack16 %%f6, %%f6    \n\t" \

  76.     "fpack16 %%f22, %%f22  \n\t" \

  77.     "fpack16 %%f2, %%f2    \n\t" \

  78.     "fpack16 %%f18, %%f18  \n\t"

  79. 

  80. 

  81. 

  82. static int vis_420P_ARGB32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,

  83.                            int srcSliceH, uint8_t* dst[], int dstStride[]){

  84.   int y, out1, out2, out3, out4, out5, out6;

  85. 

  86.   for(y=0;y < srcSliceH;++y) {

  87.       asm volatile (

  88.           YUV2RGB_INIT

  89.           "wr %%g0, 0xd2, %%asi        \n\t" /* ASI_FL16_P */

  90.           "1:                          \n\t"

  91.           "ldda [%1] %%asi, %%f2       \n\t"

  92.           "ldda [%1+2] %%asi, %%f18    \n\t"

  93.           "ldda [%2] %%asi, %%f4       \n\t"

  94.           "ldda [%2+2] %%asi, %%f20    \n\t"

  95.           "ld [%0], %%f0               \n\t"

  96.           "ld [%0+4], %%f16            \n\t"

  97.           "fpmerge %%f3, %%f3, %%f2    \n\t"

  98.           "fpmerge %%f19, %%f19, %%f18 \n\t"

  99.           "fpmerge %%f5, %%f5, %%f4    \n\t"

  100.           "fpmerge %%f21, %%f21, %%f20 \n\t"

  101.           YUV2RGB_KERNEL

  102.           "fzero %%f0                  \n\t"

  103.           "fpmerge %%f4, %%f6, %%f8    \n\t"  // r,b,t1

  104.           "fpmerge %%f20, %%f22, %%f24 \n\t"  // r,b,t1

  105.           "fpmerge %%f0, %%f2, %%f10   \n\t"  // 0,g,t2

  106.           "fpmerge %%f0, %%f18, %%f26  \n\t"  // 0,g,t2

  107.           "fpmerge %%f10, %%f8, %%f4   \n\t"  // t2,t1,msb

  108.           "fpmerge %%f26, %%f24, %%f20 \n\t"  // t2,t1,msb

  109.           "fpmerge %%f11, %%f9, %%f6   \n\t"  // t2,t1,lsb

  110.           "fpmerge %%f27, %%f25, %%f22 \n\t"  // t2,t1,lsb

  111.           "std %%f4, [%3]              \n\t"

  112.           "std %%f20, [%3+16]          \n\t"

  113.           "std %%f6, [%3+8]            \n\t"

  114.           "std %%f22, [%3+24]          \n\t"

  115. 

  116.           "add %0, 8, %0   \n\t"

  117.           "add %1, 4, %1   \n\t"

  118.           "add %2, 4, %2   \n\t"

  119.           "subcc %4, 8, %4 \n\t"

  120.           "bne 1b          \n\t"

  121.           "add %3, 32, %3  \n\t" //delay slot

  122.           : "=r" (out1), "=r" (out2), "=r" (out3), "=r" (out4), "=r" (out5), "=r" (out6)

  123.           : "0" (src[0]+(y+srcSliceY)*srcStride[0]), "1" (src[1]+((y+srcSliceY)>>1)*srcStride[1]),

  124.             "2" (src[2]+((y+srcSliceY)>>1)*srcStride[2]), "3" (dst[0]+(y+srcSliceY)*dstStride[0]),

  125.             "4" (c->dstW),

  126.             "5" (c->sparc_coeffs)

  127.       );

  128.   }

  129. 

  130.   return srcSliceH;

  131. }

  132. 

  133. static int vis_422P_ARGB32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,

  134.                            int srcSliceH, uint8_t* dst[], int dstStride[]){

  135.   int y, out1, out2, out3, out4, out5, out6;

  136. 

  137.   for(y=0;y < srcSliceH;++y) {

  138.       asm volatile (

  139.           YUV2RGB_INIT

  140.           "wr %%g0, 0xd2, %%asi        \n\t" /* ASI_FL16_P */

  141.           "1:                          \n\t"

  142.           "ldda [%1] %%asi, %%f2       \n\t"

  143.           "ldda [%1+2] %%asi, %%f18    \n\t"

  144.           "ldda [%2] %%asi, %%f4       \n\t"

  145.           "ldda [%2+2] %%asi, %%f20    \n\t"

  146.           "ld [%0], %%f0               \n\t"

  147.           "ld [%0+4], %%f16            \n\t"

  148.           "fpmerge %%f3, %%f3, %%f2    \n\t"

  149.           "fpmerge %%f19, %%f19, %%f18 \n\t"

  150.           "fpmerge %%f5, %%f5, %%f4    \n\t"

  151.           "fpmerge %%f21, %%f21, %%f20 \n\t"

  152.           YUV2RGB_KERNEL

  153.           "fzero %%f0 \n\t"

  154.           "fpmerge %%f4, %%f6, %%f8    \n\t"  // r,b,t1

  155.           "fpmerge %%f20, %%f22, %%f24 \n\t"  // r,b,t1

  156.           "fpmerge %%f0, %%f2, %%f10   \n\t"  // 0,g,t2

  157.           "fpmerge %%f0, %%f18, %%f26  \n\t"  // 0,g,t2

  158.           "fpmerge %%f10, %%f8, %%f4   \n\t"  // t2,t1,msb

  159.           "fpmerge %%f26, %%f24, %%f20 \n\t"  // t2,t1,msb

  160.           "fpmerge %%f11, %%f9, %%f6   \n\t"  // t2,t1,lsb

  161.           "fpmerge %%f27, %%f25, %%f22 \n\t"  // t2,t1,lsb

  162.           "std %%f4, [%3]              \n\t"

  163.           "std %%f20, [%3+16]          \n\t"

  164.           "std %%f6, [%3+8]            \n\t"

  165.           "std %%f22, [%3+24]          \n\t"

  166. 

  167.           "add %0, 8, %0   \n\t"

  168.           "add %1, 4, %1   \n\t"

  169.           "add %2, 4, %2   \n\t"

  170.           "subcc %4, 8, %4 \n\t"

  171.           "bne 1b          \n\t"

  172.           "add %3, 32, %3  \n\t" //delay slot

  173.           : "=r" (out1), "=r" (out2), "=r" (out3), "=r" (out4), "=r" (out5), "=r" (out6)

  174.           : "0" (src[0]+(y+srcSliceY)*srcStride[0]), "1" (src[1]+(y+srcSliceY)*srcStride[1]),

  175.             "2" (src[2]+(y+srcSliceY)*srcStride[2]), "3" (dst[0]+(y+srcSliceY)*dstStride[0]),

  176.             "4" (c->dstW),

  177.             "5" (c->sparc_coeffs)

  178.       );

  179.   }

  180. 

  181.   return srcSliceH;

  182. }

  183. 

  184. SwsFunc yuv2rgb_init_vis(SwsContext *c) {

  185.     c->sparc_coeffs[5]=c->yCoeff;

  186.     c->sparc_coeffs[6]=c->vgCoeff;

  187.     c->sparc_coeffs[7]=c->vrCoeff;

  188.     c->sparc_coeffs[8]=c->ubCoeff;

  189.     c->sparc_coeffs[9]=c->ugCoeff;

  190. 

  191.     c->sparc_coeffs[0]=(((int16_t)c->yOffset*(int16_t)c->yCoeff >>11) & 0xffff) * 0x0001000100010001ULL;

  192.     c->sparc_coeffs[1]=(((int16_t)c->uOffset*(int16_t)c->ubCoeff>>11) & 0xffff) * 0x0001000100010001ULL;

  193.     c->sparc_coeffs[2]=(((int16_t)c->uOffset*(int16_t)c->ugCoeff>>11) & 0xffff) * 0x0001000100010001ULL;

  194.     c->sparc_coeffs[3]=(((int16_t)c->vOffset*(int16_t)c->vgCoeff>>11) & 0xffff) * 0x0001000100010001ULL;

  195.     c->sparc_coeffs[4]=(((int16_t)c->vOffset*(int16_t)c->vrCoeff>>11) & 0xffff) * 0x0001000100010001ULL;

  196. 

  197.     if (c->dstFormat == PIX_FMT_RGB32 && c->srcFormat == PIX_FMT_YUV422P && (c->dstW & 7)==0) {

  198.         av_log(c, AV_LOG_INFO, "SPARC VIS accelerated YUV422P -> RGB32\n");

  199.         return vis_422P_ARGB32;

  200.     }

  201.     else if (c->dstFormat == PIX_FMT_RGB32 && c->srcFormat == PIX_FMT_YUV420P && (c->dstW & 7)==0) {

  202.         av_log(c, AV_LOG_INFO, "SPARC VIS accelerated YUV420P -> RGB32\n");

  203.         return vis_420P_ARGB32;

  204.     }

  205.     return NULL;

  206. }